Read the sentence. Finn left his snorkeling equipment at home; otherwise, he would have spent the afternoon swimming in the ocean.

PLEASE HELP, THANK YOU! What is the purpose of the conjunctive adverb “otherwise”?

A) It introduces the reason that Finn forgot to bring his equipment to the ocean.
B) It explains what occurs as a result of Finn not going swimming in the ocean.
C) It introduces what Finn would have done had he not forgotten his equipment.
D) It explains why Finn did not want to swim in the ocean without his equipment.